Bell's Inequality with BEC Superatoms

What if Bell's Inequality experiment were performed using BEC superatoms?
Has anyone attempted this experiment, and if so, what were the results?
What distinctions, if any, would there be?

The reason I ask, is because I'm imagining that the Bell's Inequality effect would be more pronounced with BEC superatoms than with photons, because the DeBroglie wavelength is much smaller for matterwaves.